Re: ceratopsian reconstruction

[ArtSippo@aol.com]

After reading McLoughlin's book I went back to look at the ceratopsian
exhibits in the AMNH in Manhattan.  Low and behold there were 2 fenestra just
behind the eyes at the base of the frill which in the protoceratops specimens
wasa filled in with plaster!  All of the ceratopsian skulls had them and they
were consistent with paths for tendons from muscles attached to the frills.
 If you look at the frills, there appears to be muscle insertions along the
edges.  Also, most of the more advanced ceratopsian frills had fenestrae in
the main portion of hte frill which light have allowed for muscles expansion
during contraction.  

What sayeth the professional cognoscienti?

Art